[Tutor] Memory and functions

[Charles Becker]

I have a rather obscure question, and not sure where in the docs to find an answer like this.

For functions that return values (ie the list method pop): If you don't assign the returned value to anything does it still end up residing in memory?  Just seems like this could be a potential problem to watch out for when memory usage is an issue (probably not most of the time).

Also, where can I begin to find these 'lower level' answers in the docs?

Thanks!
Charles